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Alexandros

12/10/2015 14:30:03

 I am new to Flood Modeller and recently built a 1D model. When i inserted the cross sections data fields i included eastings and northings from the surveyor's data. However, the nodes are shown wherever i assign the river (for example) icon rather at the correct coordinates. ANy idea on how to update automatically from the cross section data rather than georeferencing? Thank you in advance. Alex 

Bob

Flood Modeller Support

12/10/2015 14:55:22

Alexandros

The coordinate data used by the map is actually held in a separate file that takes the same name as your network file, but with extension ".gxy". Unfortunately there is currently no way to update this file with coordinate data added in the river section properties window. However, if you unload your network from Flood Modeller you can browse to your network location and delete the associated gxy file (maybe save a backup somewhere first). Now reload the network into Flood Modeller. The software will see there is no gxy file with your network and automatically create a new one and this should now use the survey coordinate data you've assigned to each river section. Note, however, that any other node types in your network may have to be re-positioned to where you want them after this.

Hope this helps.

Bob

 

Helen

05/02/2016 16:35:23

Hi

 

I have the same issue, there are coordinates in my cross-sections but flood modeller doesn't automatically create a gxy. Do you know how this is resolved?


Thanks


Helen

 

 

Bob

Flood Modeller Support

05/02/2016 17:31:07

Hi Helen

If a network does not have an associated gxy file then one will be generated when the 1D network is first saved within Flood Modeller. When this happens Flood Modeller will try to use the coordinate data in each cross section (in the "eastings" and "northings" data fields) to locate each node icon on the map. Unfortunately if you then add further coordinate data to any cross sections then currently there isn't a tool available to recalculate the gxy. However, you can still get Flood Modeller to reproduce the gxy file by unloading the network from Flood Modeller, deleting the gxy file (or renaming if you want to retain the original file) and then reloading the 1D network into the Flood Modeller interface. This will prompt Flood Modeller to calculate a new gxy file for your network, which should take accont of the revised coordinate data.

Hope this helps

Regards

Bob

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